This is the Lucasfilm Games Habitat virtual world software, for the Commodore 64.
Habitat-Boot.d64 is a version of the original Habitat v1.0 client software, modified to add a custom loader that bypasses the need for a Quantum Link connection to hand over to the Habitat server. It is otherwise identical to the 1986 original of the A disk.
Habitat-B.d64 is the B disk and contains the artwork and imagery Habitat uses to display objects in the virtual world space.
You can use these disks on a real Commodore 64 or an emulator to connect to the
NeoHabitat virtual world.
NeoHabitat is a modern day replacement for the original Habitat server, created by
Randy Farmer, one of the original developers of Habitat who created the client.